ILLUSTRATIONS. 7 



Page. 



Plate III. Fig. 4i.— Tritoxnflexa: Sligmal plate 38 



45. — Tritoxa jlexa: Anterior spiracle 38 



46. — Tritoxa Jlexa: Tip of body, side view 38 



47. — Chrysomyia {?): Stigmal plate 38 



48. — Lucilia sylvarum: Head, side view 38 



49. — Lucilia si/lvarum: Tip of body, side view 38 



50. — Lucilia Sj/lva7mni: Anterior spiracle 38 



51. — Lucilia sylvarum: Stigmal plates 38 



52. — Chrijsomyia {?): Anterior spiracle 38 



53. — Euxesta Ihomse: Stigmal plate 38 



54. — Lucilia sericata: End of body 38 



55. — Lucilia sericata: Head, top view 38 



56. — Protocalliphora cJtn/sorrhfra: Tip of body, side view 38 



57. — Protocalliphora chri/sorrlma: Head, side view 38 



58. — Protocalliphora chn/sorrhwa: Stigmal plates 38 



59.^Euxesta tKomau: Tip of body, above 38 



60. — Lucilia sericata: Head, side view 38 



61. — Lucilia sericata: Tip of body, side view 38 



62. — Calliphora erythrocephala: Head, side view 38 



63. — Calliphora erythrocephala: Stigmal plates 38 



IV. Fig. G4. — Sarcophagid D: Tij) of l)ody, side view 38 



65. — Sarcophagid I): Head, above 38 



66. — Sarcophagid D: Head, side view 38 



67. — Chrysomyia macelluria: Head, side view 38 



68. — Chrysomyia macelluria: Tiji of body, side view 38 



69. — Chrysomyia macellaria: Anterior spiracle 38 



70. — Sarcophagid C: Head, above 38 



71. — Chrysomyia 'macellaria: End of Ixidy 38 



72.— Sarcophagid B: Stigmal plates 38 



73. — Sarcophagid A: Two segments, venter 38 



74. — Sarcophagid A: Two segments, dorsum 38 



75. — Sarcophaga incertu: Segment, venter 38 



76. — Sarcophagid B: Tip of body, side view 38 



77. — Sarcophagid C: Tip of body, side view 38 



78. — Sarcophagid A: Anterior spiracle 38 



79. — Sarcophagid B: Anterior spirkcle 38 



80. — Sarcophagid B: Head, above 38 



V. Fig. 81. — Epochra canadensis: Anterior spiracle 38 



82. — Epochra canadensis: Stigmal plate 38 



83. — Rhagoletis pomonella: Anterior spiracle 38 



84. — Rhagoletis pomonella: Stigmal plate 38 



85. — Anastrepha ludens: Tip of body, side view 38 



86. — Anastrepha lumens: Anterior spiracle 38 



87. — Ceratitis capitatn: Anal tubercle 38 



88. — Ceratitis capitata: Anterior spiracle 38 



89. — Ceratitis capitata: Ridges on ventral segments 38 



90. — Dacus ferrugineus: Tip of body, side view 38 



91. — Acidia fralria: Tip of body, side view 38 



92. — Acidia f rat rid : Stigmal plate 38 



93. — Acidia fratria: Anterior spiracle 38 



94. — Rhagoletis suavis: Tip of body, side view 38 



95. — Rhagoletis siiaris: Anterior spiracle 38 



96. — Rhagoletis suavis: Stiginal plate 38 



10039°— No. 22-12 2 



